CVE-2026-78961

Received Received - Intake

Incorrect Authorization Bypass in Google Chrome

Publication date: 2026-08-25

Last updated on: 2026-08-25

Assigner: Chrome

Description

Incorrect authorization in Core in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-25

Last Modified

2026-08-25

Generated

2026-08-26

AI Q&A

2026-08-26

EPSS Evaluated

N/A

NVD

CVE-2026-78961

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	152.0.7977.65

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability involves incorrect authorization in Google Chrome's Core component. A remote attacker who already compromised the renderer process could use social engineering to bypass web origin policy. This is done via a specially crafted HTML page.

Impact Analysis

If exploited, this vulnerability could allow an attacker to bypass security restrictions and access data or perform actions on websites as if they were from a trusted origin. This could lead to theft of sensitive information or unauthorized actions on behalf of the user.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, which may violate GDPR or HIPAA requirements for data protection and access controls. Organizations using affected Chrome versions may face compliance risks if exploited.

Mitigation Strategies

Update Google Chrome to version 152.0.7977.65 or later to address the vulnerability.

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